What is the ruling on studying in a coeducational university, given the possibility of calling people to Allah within it?

Question:
The questioner asks: What is the ruling in the religion regarding studying in a coeducational university, knowing that there is a Salafi call within the student activities, and I want to call people to Allah with them inside the university? May Allah reward you with good.

Answer:
Coeducational study between men and women is not permissible. There are universities that are not coeducational; go to them and study there. As for the coeducational university, do not study in it, even if you claim that you will call people to Allah the Exalted and Majestic, unless your presence results in separating the women from the men, separating the female students from the male students. If your presence results in removing the evil, that is good. But if your presence does not result in removing the evil, and the evil remains and the mixing remains, do not enter this university; seek another one.